Category: A

The lightening or whitening of discolored teeth, using a bleaching gel. Carbamide peroxide and hydrogen peroxide are common bleaching agents used for this purpose in concentrations ranging from 3% to 25%. Treatment must be carefully monitored to avoid overbleaching and damage to surrounding soft tissue. The act of cleaning the teeth and gums by using…

Any of teeth located close to the midline of the dental arch on either side of the jaw, including the incisors and canines.  

A permanent molar tooth that arises without deciduous predecessors in the dental arch.  

Inflammation of the lymphatic tissue of the pharynx, especially the palatine or faucial tonsils. It may occur sporadically or in epidemic form, and usually is self-limiting.  

Tonsillitis in which the entire tonsil is affected.  

A technique formerly used in blood gas analysis in which the liquid blood sample and its gas are held at equilibrium and the partial pressures of oxygen and carbon dioxide are measured.  

The concentration of a specific antibody in plasma. Antibody titers are used to establish the diagnosis of some infectious diseases: a rising titer indicates a recent exposure to a specific infectious antigen.  

The highest dilution of a serum that will cause clumping (agglutination) of the antigen being tested.  

Temporary increase in acidity of urine caused by increased secretion of alkaline substances into the duodenum or by fasting.  

A lobule isolated from the mass of the thymus gland. It is also called a supernumerary thymus.